Engineering codes

# * # * * 8 3 7 # - Version info;
# * # * * 3 7 2 # -FQC (ordering information, test);
# * # * * 3 6 4 # - Engineering menu (advanced engineering menu with network monitor, system debugger, ping of GPRS and much more);
# * # * * 2 6 6 * 0 # - Set as data COM port (set phone to cable programming mode);
# * # * * 2 6 6 * 1 # - Set as log COM port (log to phone display incoming commands);
# * # * * 7 9 7 # - Time to failure timer & Power down code (time to phone shutdown as result of battery using up);
# * # * * 2 2 6 3 * 0 # - Set to default Band;
# * # * * 2 2 6 3 * 1 # - Disable GSM Band;
# * # * * 2 2 6 3 * 2 # - Disable DCS Band;
# * # * * 2 2 6 3 * 3 # - Disable EGSM and DCS Band;
# * # * * 2 2 6 3 * 4 # - Disable PCS Band.